指泰國和柬埔寨的低音立奏鐵琴，其音域僅稍微超過2個8度音階，由固定於4根短柱上的長方形箱槽狀共鳴器，以及17根鐵條或鋼條組成，鋼條由沿著共鳴器側邊頂部的木製窄琴軌所支撐，藉著移動下方某些金屬調音，以2根或軟或硬的敲槌敲擊演奏。若指音域和調音方式相同的泰國和柬埔寨木琴，則稱「泰式低音木琴」。

泰式低音鐵琴(P,,U,繁體中文-偏好,D,,)
t'ai shih ti yin t'ieh ch'in(P,,U,韋氏拼音-偏好,UF,U,U)
tài shì dī yīn tiě qín(P,,U,漢語拼音-偏好,UF,U,U)
tai shi di yin tie qin(P,,U,漢語拼音(無聲調)-偏好,UF,U,U)
ranat thum lek(P,,U,英文-偏好,D,U,PN)
ranat thum lek(P,,U,荷蘭語-偏好,D,U,U)
ranat thum lek(P,,U,西班牙語-偏好,D,U,SN)
ranat(low-pitched metallophones)　(,U,英文-非偏好,UF,U,N)
ranat thong thum(,U,英文-非偏好,UF,U,N)
ranat toom lek(,U,英文-非偏好,UF,U,N)
roneat(low-pitched metallophones)　(,U,英文-非偏好,UF,U,N)

藝術與建築詞典根目錄
....物件層面
........裝備與設備
............聲音裝置 (層級名)
................<依音響特性區分之聲音裝置>
....................體鳴樂器
........................敲擊體鳴樂器
............................<直接敲擊的體鳴樂器>
................................打擊體鳴樂器
....................................<擊奏體鳴樂器：實心>
........................................打擊樂板
............................................金屬木琴
................................................泰式低音鐵琴

distinguished from....

泰式低音木琴

英文....	Low-pitched metallophones of Thailand and Cambodia with a range of just over two octaves, consisting of a rectangular box-shaped trough resonator mounted on four short legs, with 17 iron or steel bars supported on narrow wood tracks along the tops of the sides of the resonator, which are tuned by filing away some of the metal on the underside. They are struck with two beaters, either hard or soft. For the Thai and Cambodian xylophones of the same range and tuning, use "ranat thum."
荷蘭語....	Slaginstrumenten met rechthoekige, gootvormige klankbodem op 4 pootjes, 17 ijzeren of stalen staafjes die rusten op smalle houten sporen bovenaan langs de kanten van de klankbodem, lage klank, bereik van 2¼ octaaf; bespeeld met 2 kloppers; Thailand, Cambodja.Gebruik: 'ranat thum' voor slaginstrumenten met hetzelfde bereik en dezelfde stemming met hardhouden of bamboe staafjes.
西班牙語....	Xilófonos de tono bajo de Tailandia y Cambodia con un registro de un poco más de dos octavas que consisten en un resonador rectangular de batea en forma de caja, montado sobre unas patas muy cortas, generalmente con 17 barras de bambú o madera dura atadas en cordeles suspendidas en ganchos ubicados en las tablas inferiores del resonador. Se aplica pegamento de afinación a la parte inferior las barras y éstas se golpean con dos palillos. Para metalófonos de Tailandia y Cambodia del mismo registro y afinación, use "ranat thum lek”.

泰式低音鐵琴............	[AS-Academia Sinica]
.................	AAT-Taiwan 借詞編輯與使用原則 (2013)
ranat thum lek............	[VP]
.................	Marcuse, Musical Instruments Dictionary (1975) needs diacritic
.................	Sadie, New Grove Dictionary of Musical Instruments (1984) Vol. 3, 192, needs diacritic; in entry "ranat"
.................	Arnold, New Oxford Companion to Music (1983) Vol. 2, 1724, needs diacritic; in entry "South-East Asian music"
.................	TAA database (2000-)
.................	AAT-Ned (1994-)
ranat(low-pitched metallophones)............	[VP]
.................	Sadie, New Grove Dictionary of Musical Instruments (1984) Vol. 3, 191, needs diacritic
ranat thong thum............	[VP]
.................	Marcuse, Musical Instruments Dictionary (1975) needs diacritic
ranat toom lek............	[VP]
.................	Randel, New Harvard Dictionary of Music (1986) 791, needs diacritic
roneat(low-pitched metallophones)............	[VP]
.................	Sadie, New Grove Dictionary of Musical Instruments (1984) Vol. 3, 191
Subject:............	[Bureau AAT]
.................	Etnomusicologisch Centrum

Getty AAT: 300218287 Getty AAT: http://www.getty.edu/vow/AATFullDisplay?find=costume&logic=AND¬e=&subjectid=300218287
聯合目錄： 泰式低音鐵琴 、t'ai shih ti yin t'ieh ch'in 、tài shì dī yīn tiě qín 、tai shi di yin tie qin 、ranat thum lek 、ranat 、ranat thong thum 、ranat toom lek 、roneat 、ranat thum lek 、ranat thum lek